CVE-2021-37740
High
Description
A denial of service vulnerability exists in MDT's firmware for the KNXnet/IP Secure router SCN-IP100.03 and KNX IP interface SCN-IP000.03 before v3.0.4, that allows a remote attacker to turn the device unresponsive to all requests on the KNXnet/IP Secure layer, until the device is rebooted, via a SESSION_REQUEST frame with a modified total length field.
SeverityHigh
CVSS7.5
Exploit probability—
ProductMdt Scn-ip000.03 Firmware
PublishedApr 20, 2022
First seenApr 20, 2022
How to fix
Update
- mdt scn-ip000.03_firmware3.0.4 or later
- mdt scn-ip100.03_firmware3.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mdt scn-ip000.03_firmware | v < 3.0.4 | 3.0.4 |
| mdt scn-ip100.03_firmware | v < 3.0.4 | 3.0.4 |
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